ensure maintenance is carried out by a competent person (someone who has the necessary skills, knowledge and experience to carry out the work safely) 1  maintain plant and equipment regularly â use the manufacturerâs maintenance instructions as a guide, particularly if there are safety-critical features.
HDPE (High Density Polyethylene). 3/4 HDPE will cost about $45.00 for 100' ($0.45/ft), so depending on the amount required can be much cheaper than the previous options. HDPE is used by many municipalities as water supply lines, so it has been tried and tested in underground applications.
Skype is free, but Skype for Business will cost you. There are two basic plans available for smaller companies. âOnline Plan 1â costs $2 per user per month (with a yearly contract) and covers only the basics. Fundamentally you get very little over standard Skype with Online Plan 1, though.